As CAD 2026 planning estimates, a weeping tile camera inspection runs about $250 to $450 and a camera run with flushing from the sump about $400 to $1,200. Replacement runs about $150 to $300 per metre inside the basement plus a sump, or $250 to $500 per metre from outside with a membrane. A sump pit and pump adds $1,500 to $3,500. Repairing what exists first is often cheapest.
- Diagnosis is cheap relative to the repair: a camera run is a few hundred dollars and decides whether you flush, patch or replace.
- Interior drainage plans at $150 to $300 per metre plus a sump; exterior work at $250 to $500 per metre plus obstacles.
- A finished basement adds about 15% to 30% to interior work; each obstacle side outside adds about $1,500 to $4,000.
- Toronto and London publish subsidies for disconnection, sumps and backwater valves that can reduce the net cost (as checked September 2026).
01 /How much does weeping tile repair cost?
It ranges from a few hundred dollars for a camera run and flush to $20,000 or more for a new system around a whole house, as CAD 2026 planning estimates. The spread is wide because "weeping tile repair" covers very different jobs: clearing a silted but sound pipe, fixing one crushed section, replacing a clay loop, or disconnecting tile from the sewer and adding a sump. The figures below are the ranges used across the HAUSE network, so they agree with the sister sites’ foundation and sewer cost pages.
| Work | Unit | Planning range | Typical use |
|---|---|---|---|
| Camera inspection of the tile | Per visit | $250–$450 | Find what is there and what is wrong |
| Camera plus jetting from the sump | Per visit | $400–$1,200 | Silt or fresh ochre in an intact pipe |
| Interior weeping tile (drainage) | Per linear metre | $150–$300 | New drain inside the footing under a patched strip of floor |
| Exterior excavation with new tile and membrane | Per linear metre | $250–$500 | New drain and waterproofing from outside |
| Obstacle on an excavated side | Per side | $1,500–$4,000 | Deck, steps, landing or similar in the way |
| Sump pit and pump | Per system | $1,500–$3,500 | New outlet for interior or disconnected tile |
| Finished basement adjustment | On interior work | +15% to +30% | Removing and replacing finishes along the wall |
| Backwater valve | Per valve | $1,800–$4,500 | Often paired with disconnection from the sanitary sewer |
| Window well drain or replacement | Each | $800–$2,500 | Water entering at basement windows |
| Downspout and grading correction | Flat | $500–$3,000 | Surface water sent toward the wall |
| Plumbing permit | Per permit | $100–$300 | Where the municipality requires one |
02 /What does weeping tile cost per foot?
Many contractors and searches quote per foot. Converting this site’s per-metre planning ranges (1 m is about 3.28 ft) gives the figures below. Per-foot numbers hide the fixed costs of a job, such as mobilising a crew, a new sump or an obstacle, so a short run always costs more per foot than a long one.
| Work | Per metre | Per foot (approx.) |
|---|---|---|
| Interior weeping tile | $150–$300 | $46–$91 |
| Exterior tile with membrane | $250–$500 | $76–$152 |
03 /What do typical weeping tile jobs cost?
| Situation | Scope | Planning range |
|---|---|---|
| Pit dry in storms, silt in the pit, pipe intact on camera | Camera plus flushing from the sump | $400–$1,200 |
| One 12 m wall wet at the joint, unfinished, no sump | Interior tile 12 m plus sump pit and pump | $3,300–$7,100 |
| One 12 m wall leaking through the concrete, open yard | Exterior tile and membrane 12 m | $3,000–$6,000 |
| Same wall with a deck on that side | Exterior 12 m plus one obstacle side | $4,500–$10,000 |
| Water at the joint all round, about 40 m, unfinished | Interior tile 40 m plus sump | $7,500–$15,500 |
| Same, finished basement | Interior tile 40 m plus sump, finished adjustment | $8,625–$20,150 |
| Full 40 m perimeter from outside, no obstacles | Exterior tile and membrane 40 m | $10,000–$20,000 |
| Tile tied to the sanitary sewer; disconnect | Sump pit and pump plus backwater valve, before severing and capping | $3,300–$8,000 |
The disconnection example adds the sump and backwater valve ranges; the cost of severing and capping the old connection depends on where it is and is quoted on site. The Interior vs Exterior Weeping Tile tool does the same arithmetic for your length, finish, obstacles and sump.
04 /What makes weeping tile work more or less expensive?
- Depth. A full-height basement means a deep trench outside or a deep cut beside the footing inside; walkouts and raised basements are shallower on some sides.
- Access. Tight side yards, driveways, neighbouring houses and attached garages slow or prevent exterior work.
- Obstacles. Decks, steps, landings, patios and air conditioners must be worked around or removed and rebuilt.
- Finishes. Inside, drywall, framing and flooring along the wall come off and go back.
- The outlet. No sump and no approved storm connection means a new pit and pump either way.
- Soil and water. Wet sites need pumping during the work; heavy clay is slow to dig and to backfill well.
- Surface restoration. Sod, landscaping, walkways and concrete on top of the trench are part of the price, or a separate one.
- Season. Frozen ground and spring melt make exterior work slower and riskier.
- Permits and inspections. Some cities require plumbing permits for sumps, backwater valves or new tile.
05 /Can subsidies lower the cost?
In some cities, yes, for the parts of the work tied to flood protection. The amounts below are program maximums published by each city, as checked in September 2026; they are not what the work costs, and rules change.
| City | Item | Maximum |
|---|---|---|
| Toronto | Foundation drain severance and capping | 80% of invoiced cost, up to $400 |
| Toronto | Sump pump (with alarm) | 80%, up to $2,250; battery backup up to $300 more |
| Toronto | Backwater valve | 80%, up to $1,600 per device, maximum two |
| London | Sump pit and pump with existing weeping tile disconnection | 90% of cost, up to $4,000 |
| London | Additional weeping tile disconnection | 90%, up to $2,400 |
| London | Backwater valve; battery backup with a new pump | 90%, up to $1,800; up to $1,400 |
| Edmonton (EPCOR) | Backwater valve | Up to $800; weeping tile work not included |
Ottawa refunds building permit fees for approved protective plumbing devices; Calgary and Winnipeg pages checked this month did not show a current subsidy. Always read the program rules first: London requires that work has not started when you apply, and Toronto requires a City-licensed contractor. The details are on the Across Canada page and in weeping tile connected to the sanitary sewer.
06 /How do you read a weeping tile quote?
A useful quote reads like a description of the job, not a total. Look for each of these lines, and ask for any that are missing:
- Length of wall and which walls, in metres or feet.
- Route: interior or exterior, and the depth relative to the footing.
- Materials: pipe type and size, stone, filter, membrane and drainage board.
- Outlet: existing sump, new pit and pump (with make, capacity and check valve), backup, discharge route.
- Access and restoration: obstacles, finishes, surface and landscaping put back.
- Camera runs before and after, with the video provided.
- Permits and inspections, and who arranges them.
- Warranty: what it covers, for how long, and whose it is.
Compare quotes on scope first. A cheaper interior quote that lays a trough on top of the footing and a dearer one that digs down beside it are not the same job. Start with the Weeping Tile Problem Finder if you are not yet sure what is wrong, and when you are ready, ask HAUSE to pass your request to contractors for comparable quotes.
FAQQuestions people ask
How much does it cost to replace weeping tile in Canada?
As CAD 2026 planning estimates, about $150 to $300 per metre inside plus a sump, or $250 to $500 per metre outside with a membrane. A full 40 m perimeter plans at roughly $7,500 to $20,000 depending on route and finish.
How much does weeping tile flushing cost?
A camera run with jetting from the sump plans at about $400 to $1,200, as a CAD 2026 estimate, depending on length, access and how heavy the deposit is.
How much is weeping tile per foot?
Converting the planning ranges, about $46 to $91 per foot inside and $76 to $152 per foot outside, before sumps, obstacles and finishes.
How much does a sump pit and pump cost to install?
About $1,500 to $3,500 as a CAD 2026 planning range, more with a backup pump or a difficult discharge route.
Is interior weeping tile cheaper than exterior?
Per metre, yes: $150 to $300 inside against $250 to $500 outside. But one wall outside can cost less than a full interior perimeter, and finishes narrow the gap.
Does a city subsidy cover the whole cost of disconnection?
No. Programs pay a percentage up to a published maximum, such as Toronto’s 80% up to $400 for severance and capping. Confirm current rules with your city.
NETWORKGo deeper across the HAUSE Sewer network
Backwater valve installation: whether you need one, where it goes and how it is done
Should you install a backwater valve? When one is required, how it differs from a sump pump, how installation works, where it goes, costs and subsidies.
SewerQuotes.comSewer line replacement cost: open-cut vs trenchless, line by line
Sewer line replacement cost in Canada for 2026: open-cut, CIPP lining and pipe bursting planning ranges in CAD, per-metre math, line items and what moves price.
DrainAugering.caHow to snake a drain from outside the house
How to snake a drain from outside: using an exterior cleanout, why weeping tile and septic drain fields are different, and what to do when the line is frozen.